CT Dent Ltd Listed by kazu Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
CT Dent Ltd has been listed by the kazu ransomware group after internal files were exfiltrated in a ransomware attack. The breach was disclosed on 6 December 2025; anyone who may have shared data with the company should check for official notices and take appropriate protective steps.
What happened
The incident came to light through the group’s leak-site listing on the reported date. The only confirmed element is that kazu claims to have obtained internal files. No information has been released about whether encryption occurred, whether a ransom demand was issued, or whether any data has been published. The scale of the operation and the method of initial access remain undisclosed.
Inside kazu
Kazu is a ransomware operation that follows the now-common pattern of stealing data before encrypting systems and then listing victims on a public site. Groups of this type typically maintain infrastructure for data storage and extortion, often communicating through encrypted channels and using leak sites to pressure organisations that do not pay. Public records of similar actors show repeated targeting of mid-sized companies that hold sensitive operational or customer records, though each incident must be assessed on its own facts.
CT Dent Ltd and its sector
CT Dent Ltd, established in 2007, operates an independent cone-beam computed tomography (CBCT) imaging centre in London. It supplies scanning services, including CBCT scans, OPG X-rays and digital impressions, to more than 10,000 UK dental practices. The organisation’s work supports treatment planning and diagnostics for dental practitioners, placing it within the specialised medical-imaging segment of healthcare services.
Entities in this sector routinely process referral information, scan images and associated clinical correspondence. Because the images are used across a large network of practices, any exposure of systems can affect data belonging to many separate dental providers and their patients.
What data was at risk
The listing refers only to “internal files.” The precise categories of information contained in those files have not been disclosed. Organisations of this type commonly hold patient identifiers, referral details, radiographic images and limited clinical notes. Without an official statement from CT Dent Ltd or a verified sample of the material, the exact contents cannot be confirmed.
The real-world impact
Exposure of internal files from a dental imaging provider could reveal patient identifiers linked to diagnostic images, potentially affecting privacy and requiring affected individuals to monitor for misuse of their information. For the organisation and its referring practices, the incident may prompt reviews of data-handling procedures and additional security measures. At present, no confirmed instances of data misuse arising from this listing have been reported.
If your data was in this claimed breach
Individuals who have undergone scans at practices that use CT Dent Ltd should remain alert for unusual activity involving their personal or financial information. Practical first steps include reviewing bank and credit statements, enabling multi-factor authentication on important accounts, and considering a credit freeze if sensitive identifiers appear to be involved. Readers can also run a free exposure scan of their email address against known breach data sets to check for prior appearances in published incidents.
AICompiled with AI assistance from public sources and published under our editorial standards.
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Publicly posted by kazu — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.